大约有 44,000 项符合查询结果（耗时：0.0627秒） [XML]
Progress indicator during pandas operations
...t tqdm # for notebooks
df = pd.DataFrame(np.random.randint(0, int(1e8), (10000, 1000)))
# Create and register a new `tqdm` instance with `pandas`
# (can use tqdm_gui, optional kwargs, etc.)
tqdm.pandas()
# Now you can use `progress_apply` instead of `apply`
df.groupby(0).progress_apply(lambda x:...
Finding a substring within a list in Python [duplicate]
...ut consider this example:
import timeit
mylist = ['abc123'] + ['xyz123']*1000
sub = 'abc'
timeit.timeit('[s for s in mylist if sub in s]', setup='from __main__ import mylist, sub', number=100000)
# for me 7.949463844299316 with Python 2.7, 8.568840944994008 with Python 3.4
timeit.timeit('next((s ...
How to get indices of a sorted array in Python
...isMatthew Lewis
2,12211 gold badge1111 silver badges1010 bronze badges
1
...
Benchmarking (python vs. c++ using BLAS) and (numpy)
...s fast as C++?
– wmac
Jul 28 '15 at 10:50
You're C++ code is running slower than the original posters. Did you compile...
How to prevent form resubmission when page is refreshed (F5 / CTRL+R)
...ome :)
– Gufran Hasan
Feb 27 '19 at 10:43
1
Tks, this is work perfect for me, it just had to crea...
Repository Pattern vs DAL
...
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edited Jul 15 '10 at 5:41
John Leidegren
54.6k1616 gold badges113113 silver badges144144 bronze badges
...
Getting key with maximum value in dictionary?
...
You can use operator.itemgetter for that:
import operator
stats = {'a':1000, 'b':3000, 'c': 100}
max(stats.iteritems(), key=operator.itemgetter(1))[0]
And instead of building a new list in memory use stats.iteritems(). The key parameter to the max() function is a function that computes a key t...
How can I list ALL DNS records?
...in of salt.
– Peter
Jun 12 '14 at 8:10
I just got "connection refused"
– niico
...
How to access a preexisting collection with Mongoose?
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...